Integrated boiler system

ABSTRACT

The present invention is directed to an integrated boiler system, comprising: two separate boilers, one disposed inside the other, each of the boilers having: (a) a vertical partition disposed therein; (b) a water passage at a top side of the partition; and (c) a water passage at a bottom side of the partition; a chamber disposed in, or generated by, a gap between the boilers; and a heating element, disposed in the chamber, for heating the boilers simultaneously by the same energy.

TECHNICAL FIELD

The present invention relates to the field of boiler heating technology.

BACKGROUND ART

PCT/IL2019/050416 by the same Applicant is considered as the closestprior art. It discloses “a boiler heating system comprising: ahollowed-walls cylinder, for storing therein water to be heated; apartition in a form of a cylinder, disposed inside the hollowed-wallscylinder, distantly from its vertical walls; the partition having anupper water passage and a lower water passage, for allowing watertransition between the internal side of the partition and the externalside of the partition; a heating element disposed inside the internalspace of the hollowed-walls cylinder; a water inlet, disposed in thelower side of the hollowed-walls cylinder; and a water outlet, disposedin an upper side of the hollowed-walls cylinder, thereby (a) allowingheating the water without being in direct contact between the heatingelement and the water, resulting with no scale accumulation, and (b)separation between ascending water and descending water, therebyaccelerating the water warming.”

As mentioned, the boiler described in patent applicationPCT/IL2019/050416 speeds up the heating of the water of a boiler.However, since there is a long felt need to improve the utilization ofenergy, there is a need to improve the energy utilization the boilersystem described in PCT/IL2019/050416.

It is an object of the present invention to provide an improved solutionto the above-mentioned and other problems of the prior art.

Other objects and advantages of the invention will become apparent asthe description proceeds.

SUMMARY OF THE INVENTION

The present invention is directed to an integrated boiler system,comprising:

two separate boilers, one disposed inside the other, each of the boilershaving:

(a) a vertical partition disposed therein;

(b) a water passage at a top side of the partition; and

(c) a water passage at a bottom side of the partition;

a chamber disposed in, or generated by, a gap between the boilers; and

a heating element, disposed in the chamber, for heating the boilerssimultaneously by the same energy.

According to one embodiment of the invention, at least one of the waterpassages is adjustable, thereby allowing changing the heating rate ofthe boiler. Such a characteristic may be achieved by, for example, atelescopic partition.

The heating element may be a filament, a spiral filament (coil), etc.

Preferably, each of the boilers has a cylindrical form;

however other forms may be used as well, such as a rectangular prism.

As mentioned, the chamber may also be generated from the walls of theboilers, and more particularly a gap between the external wall of theinternal boiler, and the internal wall of the external boiler.

According to one embodiment of the invention, the ratio of the volumescreated by the partition is adjustable. This can be accomplished, forexample, by placing an inflatable balloon in one of the volumes.

The reference numbers have been used to point out elements in theembodiments described and illustrated herein, in order to facilitate theunderstanding of the invention. They are meant to be merelyillustrative, and not limiting. Also, the foregoing embodiments of theinvention have been described and illustrated in conjunction withsystems and methods thereof, which are meant to be merely illustrative,and not limiting.

BRIEF DESCRIPTION OF DRAWINGS

Preferred embodiments, features, aspects and advantages of the presentinvention are described herein in conjunction with the followingdrawings:

FIG. 1 is a sectional view of an integrated boiler system, according tothe prior art, and more particularly PCT/IL2019/050416.

FIG. 2 is a cross-section of the integrated boiler system of FIG. 1.

FIG. 3 is a perspective view of an integrated boiler system, accordingto one embodiment of the invention.

FIG. 4 is the longitudinal cross-section A-A as defined in FIG. 3. Itillustrates the structure of the integrated boiler system.

FIG. 5 is a broken view that further details the integrated boilersystem, according to the embodiment of the invention illustrated herein.

FIG. 6 is the longitudinal cross-section A-A as defined in

FIG. 3. It illustrates the water in the integrated boiler system.

FIG. 7 is the longitudinal cross-section A-A as defined in FIG. 3. Itillustrates the water flow in the integrated boiler system.

It should be understood that the drawings are not necessarily drawn toscale.

DESCRIPTION OF EMBODIMENTS

The present invention will be understood from the following detaileddescription of preferred embodiments (“best mode”), which are meant tobe descriptive and not limiting. For the sake of brevity, somewell-known features, methods, systems, procedures, components, circuits,and so on, are not described in detail.

FIG. 1 is a sectional view of an integrated boiler system, according tothe prior art, and more particularly PCT/IL2019/050416.

FIG. 2 is a cross-section of the integrated boiler system of FIG. 1.

This structure defines three chambers:

Chamber C, which is the interior side of cylinder 14. Chamber C isreferred herein as a Combustion Chamber;

Chamber H, which is confined by cylinders 13 and 14, i.e., the spacebetween the partition 13 and the cylinder 14. This chamber is referredherein as Heating Chamber; and

Chamber A which is the space confined by cylinder 12 and cylinder 14,excluding the space of chamber H. This chamber is referred herein asAccumulating Chamber.

Cylinder 14 is heated by the heating element 15. As a result, the waterdisposed in chamber H is heated, and therefore moves upwards.

The heated water of chamber H is in contact with the water of chamber A.As a result the water of chamber A, which is colder than the water ofchamber H, moves downwards. Thus, the water inside the tank circulatesas illustrated in this figure by the arrows.

The relation between the space of the heating chamber H and the space ofthe accumulating chamber A determines the heating rate of the water inthe tank.

Since in this structure the water of the tank is not in direct contactwith the heating element 15, no scale is generated. As a result, thissystem lasts longer than systems in which water is heated while being indirect contact with the heating element. Furthermore, in the presentinvention lesser maintenance activity is required, since the mainmaintenance activity in the prior art boilers is due to the accumulatedscale.

Furthermore, the system heats a boiler's water in less time than a priorart boiler with the same characteristics, so the energy consumed by thepresent invention is lesser in comparison to the prior art boiler. Thereason thereof is separation between ascending water and descendingwater inside the boiler, in contrast to prior art boilers in whichascending water is mixed with descending water and therefore interferewith each other.

FIGS. 3 to 6 illustrate an integrated boiler system 101, according toone embodiment of the present invention.

Generally speaking, according to the present invention, two boilersoperating according to the principles of PCT/IL2019/050416, are heatedby the same heating element, which is marked herein by reference numeral15.

One of the boilers, which is marked herein by letter A, is in a form ofa cylinder, while the other, which is marked herein by letter B, is in aform of a tube which surrounds boiler A. Thus, boiler A is the internalboiler, while boiler B is the external boiler.

Between the boilers is disposed a heating chamber H, in which is placeda heating element 15. According to this example, the heating element isin a form of a coil.

This structure uses the heating chamber H with the element 15 is sharedby both boilers the internal A and external boiler B. Thus, the sameenergy is used for heating two boilers. As such, the present inventionis more efficient than the invention of PCT/IL2019/050416.

FIG. 3 is a perspective view of an integrated boiler system, accordingto one embodiment of the invention.

It shows the external casing of the boiler, and the hot water outlets 11a and 11 b. The index “a” refers to the internal boiler, and the index“b” refers to the external boiler.

Reference numeral 10 b points on the water inlet to the external boilerB.

In this figure is defined a longitudinal cross section A-A of the boilersystem.

FIG. 4 is the longitudinal cross-section A-A as defined in FIG. 3. Itillustrates the structure of the integrated boiler system.

As mentioned, the integrated boiler system comprises two boilers: aninternal boiler, which is marked herein by reference letters A; and anexternal boiler which is marked herein by reference letter B.

The figure shows the space of the internal boiler which is marked as(A), and the space of the external boiler which is marked as (B). Thedot at the end of the curve that points on an illustrated elementdenotes a space inside the element.

Reference numeral 10 a denotes an inlet to the internal boiler A; andreference numeral 10 b denotes an inlet to the internal boiler B.Reference numeral 11 a denotes a hot water outlet from the internalboiler A; and reference 11 b denotes a hot water outlet from theexternal boiler B.

Reference numeral 13 a denotes a partition inside the internal boiler A,and reference numeral 13 b denotes a partition inside the externalboiler B. It should be noted that the partitions 13 a and 13 b do notreach to the top and bottom of the corresponding boilers, but ratherhave a space to allow the water to circulate around the partitions.

It should be noted that according to this embodiment of the invention,the Combustion Chamber C is the space between the external wall of theinternal boiler A and the internal wall of the external boiler B.

Despite of the fact that in this example there are two inlets and twooutlets, it should be noted that the number of inlets and outlets can bedifferent. Actually, one inlet and one outlet are adequate and evenpreferable.

FIG. 5 is a broken view that further details the integrated boilersystem, according to the embodiment of the invention illustrated herein.

It shows the spaces (A) and (B) of the boilers, the space (C) of theCombustion Chamber, and the partitions 13 a and 13 b.

It should be noted that the space of the combustion chamber C does notmeet the space of the boilers. Thus, water from the boilers do not enterinto the combustion chamber.

FIG. 6 is the longitudinal cross-section A-A as defined in FIG. 3. Itillustrates the water in the integrated boiler system.

The water of the internal boiler A is filled by a different fill thanthe water of the external boiler B.

FIG. 7 is the longitudinal cross-section A-A as defined in FIG. 3. Itillustrates the water flow in the integrated boiler system.

As illustrated, there is a water passage at the top and bottom sides ofeach of said partition. The water passage is obtained by a gap betweeneach partition and a top of the boiler thereof, and each partition and abottom of the boiler thereof.

The arrows demonstrate water flow.

As illustrated, the water in each of the boilers rotates around theboiler partition. This subject matter is described hereinabove, and alsoin PCT/IL2019/050416.

As illustrated, a single heating element 15 heats both, the water of theinternal boiler A, and the water of the external boiler B. Thus, inaddition to the benefits described in PCT/IL2019/050416, the presentinvention also saves energy.

In the figures and/or description herein, the following referencenumerals (Reference Signs List) have been mentioned:

-   numeral 100 denotes an integrated boiler system, according to the    prior art, and more particularly of PCT/IL2019/050416;-   numeral 101 denotes an integrated boiler system, according to one    embodiment of the present invention;-   the letter A denotes the internal boiler;-   the letter (A) in parentheses denotes the space of boiler A;-   the letter B denotes the external boiler;-   the letter (B) in parentheses denotes the space of boiler B;-   the letter C denotes a combustion chamber;-   the letter H denotes a heating chamber;-   the letter A denotes an accumulating chamber;-   numeral 10 denotes an inlet to the heating system 100;-   numeral 10 a denotes a water inlet into the internal boiler A;-   numeral 10 b denotes a water inlet into the internal boiler B;-   numeral 11 denotes an outlet from the heating system 100;-   numeral 11 a denotes a water outlet from the internal boiler A;-   numeral 11 b denotes a water outlet from the external boiler B;-   numeral 12 denotes a first cylinder;-   numeral 13 denotes a second cylinder operable as a partition;-   numeral 13 a denotes a partition cylinder inside the internal boiler    A;-   numeral 13 b denotes a partition cylinder inside the external boiler    B;-   numeral 14 denotes a third cylinder;-   numeral 15 denotes a heating element;-   numeral 20 denotes a water line; and-   numeral 21 denotes water inside the boiler.

In the description herein, the following references have been mentioned:PCT/IL2019/050416

The foregoing description and illustrations of the embodiments of theinvention has been presented for the purposes of illustration. It is notintended to be exhaustive or to limit the invention to the abovedescription in any form.

Any term that has been defined above and used in the claims, should tobe interpreted according to this definition.

The reference numbers in the claims are not a part of the claims, butrather used for facilitating the reading thereof. These referencenumbers should not be interpreted as limiting the claims in any form.

1. An integrated boiler system, comprising: two separate boilers, onedisposed inside other, each of said boilers having: (a) a verticalpartition disposed therein; (b) a water passage at a top side of saidpartition; and (c) a water passage at a bottom side of said partition; achamber disposed in, or generated by, a gap between said boilers; and aheating element, disposed in said chamber, for heating said boilerssimultaneously by same energy
 2. The system according to claim 1,wherein at least one of said water passages is adjustable.
 3. The systemaccording to claim 1, wherein said partition is telescopic.
 4. Thesystem according to claim 1, wherein said heating element is a filament.5. The system according to claim 1, wherein said heating element is acoil.
 6. The system according to claim 1, wherein each of said boilershas a cylindrical form.
 7. The system according to claim 1, wherein aratio of volumes created by said partition is adjustable.